ABB SPDSI13 Symphony Plus Digital Input Module

Description

The SPDSI13 module offers 16 isolated channels to capture signals from dry contacts or voltage-sourced devices. It converts field inputs into digital data for the controller, with galvanic isolation and filtering to prevent false readings. Ideal for power generation and utilities, it ensures reliable feedback from switches, motor starters, and pushbuttons in harsh industrial environments.

Specifications

• Manufacturer: ABB

• Country of Origin: USA

• Model Number: SPDSI13

• Product Series: Symphony Plus / Harmony

• Module Type: Digital Input (DI) Module

• Input Channels: 16 Isolated Channels

• Input Voltage: 24V DC / 48V DC / 125V DC (Depending on configuration)

• Approximate Weight: 0.58 kg

• Power Requirements: 5V DC @ 100mA (Typical via backplane)

Features

• Status Monitoring: Real-time acquisition of binary states for critical interlocking and sequence-of-events reporting.

• Electrical Hardening: Built-in isolation protects sensitive internal processor electronics from field-side voltage surges and ground loops.

• Signal Integrity: Integrated hardware debouncing and software filtering eliminate erroneous state changes caused by mechanical contact jitter.

• Diagnostic Feedback: Onboard LED indicators provide immediate visual confirmation of individual channel status and general module health.

• Architecture Versatility: Designed for easy insertion into Harmony Module Mounting Units (MMU), ensuring compatibility with both legacy and modern DCS cabinets.